Table 2.

Mean values of the drought-induced change (%) in vegetative and yield traits of ten wheat cultivars sequestered into three clusters; with superscripts for ranking within clusters

Trait	Cluster 1	Cluster 2	Cluster 3	Trait	Cluster 1	Cluster 2	Cluster 3
Leaf specific area	− 4c	− 1a	− 2b	Shoot water content	− 5a	− 6b	− 7c
Leaf chlorophyll stability index	8b	1c	13a	Shoot evapotranspiration rate	45c	55a	53b
Leaf photosynthesis rate	− 29a	− 33b	− 45c	Biological yield	− 36c	− 25b	− 9a
Leaf total carbohydrate content	− 1c	16a	15b	Economic yield	− 32c	− 30b	− 8a
Leaf membrane stability index	− 6a	− 7b	− 8c	Water use efficiency for biomass	− 6c	12b	35a
Leaf catalase activity	− 15b	− 34c	79a	Water use efficiency for grain	− 10c	− 9b	20a
Leaf relative water content	− 9a	− 10b	− 11c	Evapotranspiration efficiency	− 19c	7b	21a
Leaf proline content	125c	237a	232b	Hundred kernel mass	− 18c	− 16b	− 4a
Shoot length	− 11a	− 20c	− 13b	Grain total carbohydrate content	− 18c	− 12b	− 7a
Shoot tillering ability	− 6b	− 29c	47a	Grain total protein content	− 3c	0b	11a